Bransford MediaL-Log to Rec.709
Free Leica SL2-S LUT (L-Log to Rec.709)
Turns the SL2-S's L-Log / Rec.2020 footage into normal-looking Rec.709 video. One .cube LUT, free for any project, no email.
The zip holds the same LUT twice: a 65-point file for editing, and a 33-point file for monitoring on a camera or in an app, or for older apps that won't load the larger one.
Built from Leica's published spec; not yet tested on footage from this camera. If blacks look lifted or crushed, check the clip's data levels.
L-Log, as recorded
With the LUT
The LUT converts L-Log with BT.2020 color, as the manufacturer publishes them, into Rec.709 through the ACES 2.0 output (SDR, 100 nits).
Built from: Leica, L-Log Reference Manual V1.9.
Set up the SL2-S
- Video Settings > Video Gamma > select L-Log. L-Log records in the Rec.2020 colour space. For HDMI RAW, Video Format / Resolution > HDMI RAW (C4K).
- Leica lists native ISO 400 and 2500 in L-Log.
Exposure
Leica L-Log Reference Manual: L-Log puts 18% middle grey at 44% IRE (10-bit 445), and Leica's L-Log LUTs are built for that exposure. For best quality Leica recommends exposing to the right, then correcting exposure before applying the LUT.
Sources
- leica-camera.com
SL2-S (2020) native L-Log ISO 400/2500; menu path; HDMI RAW C4K; BT.2020; 18% grey = 44% IRE
- leica-camera.com
Leica's legacy LUT pack is literally named 'Leica SL2-S - Leica Look Up Tables (LUT)' (Classic/Natural, Rec709 and Rec2020)
- cined.com
Secondary source (CineD, December 10 2020) for the announcement date
- leica-camera.com
Leica's own LUTs, free from the maker under the maker's terms.